package com.ruoyi.web.controller.common;

import java.util.*;
import java.util.stream.Collectors;

import com.alibaba.fastjson2.JSON;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.utils.oss.AliyunOssUploadUtils;
import com.ruoyi.system.domain.SysAddress;
import com.ruoyi.system.domain.dto.AddressDTO;
import com.ruoyi.system.mapper.SysAddressMapper;
import com.ruoyi.system.service.ISysAddressService;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.MediaType;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.multipart.MultipartFile;
import com.ruoyi.common.config.RuoYiConfig;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.core.domain.AjaxResult;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.file.FileUploadUtils;
import com.ruoyi.common.utils.file.FileUtils;
import com.ruoyi.framework.config.ServerConfig;

/**
 * 通用请求处理
 * 
 * @author ruoyi
 */
@RestController
@RequestMapping("/common")
public class CommonController
{
    private static final Logger log = LoggerFactory.getLogger(CommonController.class);

    @Autowired
    private ServerConfig serverConfig;

    private static final String FILE_DELIMETER = ",";

    @Autowired
    private RedisCache redisCache;

    @Autowired
    //private SysAddressMapper sysAddressMapper;
    private ISysAddressService iSysAddressService;
    /**
     * 通用下载请求
     * 
     * @param fileName 文件名称
     * @param delete 是否删除
     */
    @GetMapping("/download")
    public void fileDownload(String fileName, Boolean delete, HttpServletResponse response, HttpServletRequest request)
    {
        try
        {
            if (!FileUtils.checkAllowDownload(fileName))
            {
                throw new Exception(StringUtils.format("文件名称({})非法，不允许下载。 ", fileName));
            }
            String realFileName = System.currentTimeMillis() + fileName.substring(fileName.indexOf("_") + 1);
            String filePath = RuoYiConfig.getDownloadPath() + fileName;

            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, realFileName);
            FileUtils.writeBytes(filePath, response.getOutputStream());
            if (delete)
            {
                FileUtils.deleteFile(filePath);
            }
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }

    /**
     * 通用上传请求（单个）
     */
    @PostMapping("/upload")
    public AjaxResult uploadFile(MultipartFile file) throws Exception
    {
       /* try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            // 上传并返回新文件名称
            String fileName = FileUploadUtils.upload(filePath, file);
            String url = serverConfig.getUrl() + fileName;
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", fileName);
            ajax.put("newFileName", FileUtils.getName(fileName));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }*/

        try {
            String url = AliyunOssUploadUtils.uploadFile(file);
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", url);
            ajax.put("newFileName", FileUtils.getName(url));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }catch (Exception e){
            return AjaxResult.error(e.getMessage());
        }

    }

    /**
     * 通用上传请求（多个）
     */
    @PostMapping("/uploads")
    public AjaxResult uploadFiles(List<MultipartFile> files) throws Exception
    {
        try
        {
            // 上传文件路径
            String filePath = RuoYiConfig.getUploadPath();
            List<String> urls = new ArrayList<String>();
            List<String> fileNames = new ArrayList<String>();
            List<String> newFileNames = new ArrayList<String>();
            List<String> originalFilenames = new ArrayList<String>();
            for (MultipartFile file : files)
            {
                // 上传并返回新文件名称
                String fileName = FileUploadUtils.upload(filePath, file);
                String url = serverConfig.getUrl() + fileName;
                urls.add(url);
                fileNames.add(fileName);
                newFileNames.add(FileUtils.getName(fileName));
                originalFilenames.add(file.getOriginalFilename());
            }
            AjaxResult ajax = AjaxResult.success();
            ajax.put("urls", StringUtils.join(urls, FILE_DELIMETER));
            ajax.put("fileNames", StringUtils.join(fileNames, FILE_DELIMETER));
            ajax.put("newFileNames", StringUtils.join(newFileNames, FILE_DELIMETER));
            ajax.put("originalFilenames", StringUtils.join(originalFilenames, FILE_DELIMETER));
            return ajax;
        }
        catch (Exception e)
        {
            return AjaxResult.error(e.getMessage());
        }
    }

    /**
     * 本地资源通用下载
     */
    @GetMapping("/download/resource")
    public void resourceDownload(String resource, HttpServletRequest request, HttpServletResponse response)
            throws Exception
    {
        try
        {
            if (!FileUtils.checkAllowDownload(resource))
            {
                throw new Exception(StringUtils.format("资源文件({})非法，不允许下载。 ", resource));
            }
            // 本地资源路径
            String localPath = RuoYiConfig.getProfile();
            // 数据库资源地址
            String downloadPath = localPath + StringUtils.substringAfter(resource, Constants.RESOURCE_PREFIX);
            // 下载名称
            String downloadName = StringUtils.substringAfterLast(downloadPath, "/");
            response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE);
            FileUtils.setAttachmentResponseHeader(response, downloadName);
            FileUtils.writeBytes(downloadPath, response.getOutputStream());
        }
        catch (Exception e)
        {
            log.error("下载文件失败", e);
        }
    }


    /*
    * 加载省市区
    * */
    @GetMapping("/area")
    public AjaxResult getAddressList() {
        String address = redisCache.getCacheObject("addressList");
        if(StringUtils.isNotEmpty(address)){
            List<AddressDTO> addressDTOList = JSON.parseArray(address,AddressDTO.class);
            if(addressDTOList.size()>0){
                return AjaxResult.success(addressDTOList);
            }
        }

        List<SysAddress> addressList = iSysAddressService.selectSysAddressList(null);
        Map<Integer, List<SysAddress>> cityMap = addressList.stream().filter(it -> it.getLevel() == 1).collect(Collectors.groupingBy(it -> it.getPid()));
        Map<Integer, List<SysAddress>> districtMap = addressList.stream().filter(it -> it.getLevel() == 2).collect(Collectors.groupingBy(it -> it.getPid()));
        List<AddressDTO> result = new ArrayList<>();
        addressList.stream().filter(it -> it.getLevel() == 0).forEach(it -> {
            AddressDTO dto = new AddressDTO();
            dto.setId(it.getId());
            dto.setLevel("province");
            dto.setName(it.getName());
            dto.setPid(0);
            dto.setCode(it.getCode());
            //获取城市列表
            List<AddressDTO> child = new ArrayList<>();
            if (cityMap.containsKey(it.getId())) {
                cityMap.get(it.getId()).forEach(city -> {
                    AddressDTO cityDto = new AddressDTO();
                    cityDto.setId(city.getId());
                    cityDto.setLevel("city");
                    cityDto.setName(city.getName());
                    cityDto.setPid(city.getPid());
                    cityDto.setCode(city.getCode());
                    cityDto.setChildren(districtMap.containsKey(city.getId()) ?
                            districtMap.get(city.getId()).stream().map(district -> {
                                AddressDTO districtDto = new AddressDTO();
                                districtDto.setId(district.getId());
                                districtDto.setLevel("district");
                                districtDto.setName(district.getName());
                                districtDto.setPid(district.getPid());
                                districtDto.setCode(district.getCode());
                                return districtDto;
                            }).collect(Collectors.toList()) : Collections.EMPTY_LIST);
                    child.add(cityDto);
                });
            }
            dto.setChildren(child);
            result.add(dto);
        });
        redisCache.setCacheObject("addressList",JSON.toJSONString(result));
        return AjaxResult.success(result);

    }


    /**
     * 获取区域编码
     */


    @GetMapping("/code")
    public AjaxResult getRegionCode(
            @RequestParam("province") String province,
            @RequestParam("city") String city,
            @RequestParam("district") String district) {

        String provinceCode = iSysAddressService.getProvinceCode(province);
        System.err.println(provinceCode);
        String  cityName = iSysAddressService.getCityCode(province,city);
        System.err.println(cityName);
        String districtName = iSysAddressService.getDistrictCode(province,city,district);
        System.err.println(districtName);

        return AjaxResult.success();
    }


    /*
     * 阿里云oss
     * */
    @CrossOrigin
    @PostMapping("/uploadOSS")
    public AjaxResult uploadFileOSS(MultipartFile file) throws Exception {
        try {
            String url = AliyunOssUploadUtils.uploadFile(file);
            AjaxResult ajax = AjaxResult.success();
            ajax.put("url", url);
            ajax.put("fileName", url);
            ajax.put("newFileName", FileUtils.getName(url));
            ajax.put("originalFilename", file.getOriginalFilename());
            return ajax;
        }catch (Exception e){
            return AjaxResult.error(e.getMessage());
        }
    }





}
